title: EGS5 simulations to design a Ce:GAGG scintillator based Compton camera.
abstract: Ce(+3): Gd3Al2Ga3O12 (Ce:GAGG) is expected to be promising scintillator for PET, SPECT, and gamma camera applications because of its attractive properties. We designed a Compton camera based on Ce:GAGG, both as scatterer and absorber, for imaging and radioactivity measurement of point sources. The two important parameters sensitivity and spatial resolution are determined for 4 × 4 pixels, each pixel of size 1 × 1 cm(2), for both scatterer and absorber. Our main focus in this paper is to image a distant source for which sensitivity is of prime importance. High sensitivity and light weight are two important advantages of Compton camera for distant source imaging and the availability of Ce:GAGG 3 × 3 mm(2) pixel size is expected to give a spatial resolution of ~ 5 mm for medical applications as well.
authors.forename: Azhar H
authors.initials: AH
authors.lastname: Malik
authors.forename: Kenji
authors.initials: K
authors.lastname: Shimazoe
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Takahashi
mesh_terms: D000465:Algorithms; D003198:Computer Simulation; D003952:Diagnostic Imaging / Q000379:methods*; D004867:Equipment Design; D015902:Gamma Cameras; D006801:Humans; D015203:Reproducibility of Results; D012542:Scattering, Radiation; D015899:Tomography, Emission-Computed, Single-Photon / Q000379:methods*